mtg jeleva commander deck Jeleva, Nephalia's Scourge en Nephalias Scourge enters the battlefield Jeleva, Nephalia's Scourge - #1

Not flashy, but quite solid

There are some abuses of this with alternate casting cost things, Vine Dryad, Tasigur, Myr Enforcer

Iroh, Tea Master Thanks to Avatar: The Last Airbender we get the generous Iroh, Tea Master

After the last chapter ability finishes resolving (or otherwise leaves the stack), you sacrifice the Saga

Virtually every deck needs to play lands to get going, but if you drop an early Cemetery Gatekeeper and exile a land (which there should be abundance of in eternal formats), then is your opponent forced into not playing lands until they find an answer

What this allows you to do with Myrkul on the battlefield is put enough -1/-1 counters on these Creatures to put them into your graveyard yourself, then choose to have them come back as Enchantments